System locks up while most of the processes are waiting in cciss_ioctl.
Issue
- System locks up, vmcore shows that most of the processes are waiting in cciss_ioctl.
PID: 2528 TASK: ffff81007c225100 CPU: 2 COMMAND: "multipathd"
#0 [ffff81007ada9b08] schedule at ffffffff80062fa0
#1 [ffff81007ada9be0] wait_for_completion at ffffffff80063171
#2 [ffff81007ada9c30] cciss_ioctl at ffffffff880bc177 [cciss]
#3 [ffff81007ada9d40] blkdev_driver_ioctl at ffffffff8014df26
#4 [ffff81007ada9d80] blkdev_ioctl at ffffffff8014e577
#5 [ffff81007ada9ea0] block_ioctl at ffffffff800e8e37
#6 [ffff81007ada9eb0] do_ioctl at ffffffff80042496
#7 [ffff81007ada9ed0] vfs_ioctl at ffffffff800304e0
#8 [ffff81007ada9f40] sys_ioctl at ffffffff8004c89a
#9 [ffff81007ada9f80] system_call at ffffffff8005d116
Environment
- Red Hat Enterprise Linux 5
- HP Smart Array Controller Firmware 2.36
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